MODEL PD660 NEMA 4X
LOW COST 3
1
/
2
DIGIT LOOP-POWERED METERS
www.predig.com
PRECISION DIGITAL CORPORATION
PHONE (800) 343-1001 • FAX (317) 216-1277
Specifications
INPUT: 4-20 mA @ 24 VDC Maximum
DISPLAY: Sharp, 0.5
″
high LCD, 3
1
/
2
digits; 1999, user
selectable decimal point
CALIBRATION: 2 Step; non-interacting zero and span
CALIBRATION RANGE: 4 mA input: -500 to +500; 20
mA input: between 20 to 2000 above 4 mA display
MAXIMUM VOLTAGE DROP: 1.5 VDC @ 20 mA;
3.5 VDC @ 20 mA with backlighting option
ACCURACY: ±0.1% of span, ±1 count
CONNECTIONS: Removable screw terminal block
OPERATING TEMPERATURE RANGE: -40 to 80°C
APPROVAL: The PD661-N-EX and PD661-B-EX have
been FM and CSA certified as explosion-proof for Class I,
Division 1, Groups B, C, and D; dust-ignition proof for Class
II, Division 1, Groups E, F, and G; and Class III hazardous
(classified) locations. LCIE (CENELEC) certified as flame-
proof, EEx d IIC T6.
PD660 ENCLOSURE: High impact-resistant ABS plastic
body, clear ABS plastic cover; NEMA 4X;
1
/
2
″
conduit hole
provided at base. May be provided on back for panel mount-
ing applications, call factory for details.
PD661 ENCLOSURE: Cast aluminum, approved by FM
and CSA; NEMA 4, 7 and 9; Class I, Groups B, C, and D;
Class II, Groups E, F, and G; and Class III. Two
1
/
2
″
NPT
holes provided.
LOOP-POWERED BACKLIGHTING OPTION: Factory
installed only. Powered directly off the 4-20 mA loop, no bat-
teries required. The display brightness will increase as the
input signal current increases.
WARRANTY: 1 year parts and labor
EXTENDED WARRANTY: May be extended an additional
12 months by returning the Product Registration Form within
2 months from date of purchase. Go to www.predig.com for
online registration.
Model
Description
PD660-N
NEMA 4X Loop-Powered Meter
PD660-B
NEMA 4X Loop-Powered Meter
with Loop-Powered Backlighting
PD661-N
Explosion-Proof Loop-Powered Meter
PD661-B
Explosion-Proof Loop-Powered Meter
with Loop-Powered Backlighting
PD661-N-EX
FM, CSA, & CENELEC Explosion-Proof Meter
PD661-B-EX
FM, CSA, & CENELEC Explosion-Proof Meter
with Loop-Powered Backlighting
PDA6604
Panel Mounting Kit
(Panel Mounting Kit does not provide NEMA 4X seal to the panel)
PDA6845
2
″
Pipe Mounting Kit
(Available for PD660 Only)
ORDERING INFORMATION
•
4-20 mA Input
•
3
1
/
2
Digit Display
•
Easy Calibration and Installation
•
Loop-Powered Backlighting
Option
•
Wide Operating Temp Range:
-40 to 80°C
MODEL PD661 EXPLOSION-PROOF
PRE
CIS
ION
DIG
ITAL
PRECISION DIGIT
AL
Please visit the Precision Digital website at
www.predig.com
for complete information on the entire line of Precision Digital
products, technical information and much more.
YOUR LOCAL DISTRIBUTOR IS:
FM,
CSA
and
CENELEC
Appr
oved
Models
FM,
CSA
and
CENELEC
Appr
oved
Models
